ViaLite RF over Fiber – Minimum and Maximum Input Signals

ViaLite has an extensive range of RF over fiber products. These products have different gains depending on the application they’re typically used for. There are also a variety of gains offered as standard on the most popular products such as L-Band HTS links.

The DR is the difference between the minimum and maximum signal that you can put through a link for a given traffic bandwidth. The minimum detectable signal (MDS) is usually assumed to be just above the system noise floor, and the maximum signal level is the largest peak power without distortion. Unlike the gain or noise figure, DR cannot be improved using amplification but the window can be moved to suit higher or lower signals, thus ensuring the best output.

DR is affected by the traffic bandwidth. Calculations for typical Satcom bandwidths are shown within the following table, which details the MDS and maximum signal levels at the default, minimum Tx and maximum Tx gains. Other applications are also shown.